Calibrated quadrature generation for multi-GHz rec

专利名称：Calibrated quadrature generation for multi-GHz receiver

发明人：Hossein Zarei申请号：US12118108申请日：20080509公开号：US08243855B2公开日：20120814

专利附图：

摘要：An integrated receiver circuit includes a phase locked loop circuit () with avoltage controlled oscillator (VCO) () and a quadrature generator circuit () which useshybrid-branch line coupler circuits () coupled to buffered VCO outputs, where the hybrid-

branch line coupler circuits () are tuned by same control voltage () that controls the VCO(). By replicating the VCO core circuitry in each hybrid-branch line coupler circuit () undercommon control of a control voltage, calibrated quadrature signals are generated thathave the same frequency as the phase locked loop circuit ().

申请人：Hossein Zarei

地址：Irvine CA US

国籍：US

代理机构：Hamilton & Terrile, LLP

代理人：Michael Rocco Cannatti

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